发明名称 |
Display device, display, and electronic unit |
摘要 |
A display device includes: a third electrode provided on a side of the second electrode opposite to the light-emitting layer; and an efficiency improving layer improving an efficiency of light extraction from the light-emitting layer, and the efficiency improving layer being provided between the second and third electrodes. The first and third electrodes are each in a laminated structure including a first layer being transmissive, and a second layer being transmissive and having a refractive index higher than a refractive index of the first layer. |
申请公布号 |
US9099681(B2) |
申请公布日期 |
2015.08.04 |
申请号 |
US201213445652 |
申请日期 |
2012.04.12 |
申请人 |
JOLED INC. |
发明人 |
Kijima Yasunori |
分类号 |
H01L29/18;H01L33/00;H01L51/52 |
主分类号 |
H01L29/18 |
代理机构 |
Sheridan Ross P.C. |
代理人 |
Sheridan Ross P.C. |
主权项 |
1. A display device, comprising:
a first electrode, wherein the first electrode is a laminated structure that includes at least a first transmissive layer and a second transmissive layer, and wherein a refractive index of the second transmissive layer is higher than a refractive index of the first transmissive layer; a second electrode; one or more organic layers with a light-emitting layer between the first electrode and the second electrode: a third electrode provided on a side of the second electrode opposite to the light-emitting layer, wherein the third electrode is a laminated structure that includes at least a first transmissive layer and a second transmissive layer, and wherein a refractive index of the second transmissive layer is higher than a refractive index of the first transmissive layer; and an efficiency improving layer improving an efficiency of light extraction from the light-emitting layer, wherein the efficiency improving layer is provided between the second and third electrodes, wherein the efficiency improving layer is a laminated structure that includes a plurality of layers, and wherein a first one of the plurality of layers has a lower refractive index than a second one of the plurality of layers. |
地址 |
JP |